firebird/firebird-mirror
firebird/firebird-mirror
8
0
Fork 1
mirror of https://github.com/FirebirdSQL/firebird.git synced 2025-01-23 18:03:04 +01:00
Code Issues

Fixed Beta2 bug reported in Russian newsgroup : AV when dropping FK

Browse Source 
with inactive index. Style
This commit is contained in:
hvlad 2006-03-17 07:56:57 +00:00
parent 6b2cd1852e
commit b4f5cb5972
1 changed files with 30 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
src/jrd/vio.cpp
View File

@ -1210,7 +1210,8 @@ void VIO_erase(thread_db* tdbb, record_param* rpb, jrd_tra* transaction)
EVL_field(0, rpb->rpb_record, f_idx_relation, &desc);
SCL_check_relation(&desc, SCL_control);
EVL_field(0, rpb->rpb_record, f_idx_id, &desc2);
if ( (id = MOV_get_long(&desc2, 0)) ) {
if ( (id = MOV_get_long(&desc2, 0)) )
{
if (EVL_field(0, rpb->rpb_record, f_idx_exp_blr, &desc2))
work = DFW_post_work(transaction, dfw_delete_expression_index, &desc, id);
else
@ -1221,35 +1222,36 @@ void VIO_erase(thread_db* tdbb, record_param* rpb, jrd_tra* transaction)
EVL_field(0, rpb->rpb_record, f_idx_name, &idx_name);
DeferredWork* arg = DFW_post_work_arg(transaction, work, &idx_name, id);
arg->dfw_type = dfw_arg_index_name;
}
// get partner relation for FK index
if (EVL_field(0, rpb->rpb_record, f_idx_foreign, &desc2))
{
MOV_get_metadata_str(&desc, relation_name, sizeof(relation_name));
DSC desc3;
EVL_field(0, rpb->rpb_record, f_idx_name, &desc3);
SqlIdentifier idx_name;
MOV_get_metadata_str(&desc3, idx_name, sizeof(idx_name));
jrd_rel *partner;
index_desc idx;
if ((r2 = MET_lookup_relation(tdbb, relation_name)) &&
(BTR_lookup(tdbb, r2, id-1, &idx) == FB_SUCCESS) &&
(MET_lookup_partner(tdbb, r2, &idx, idx_name)) &&
(partner = MET_lookup_relation_id(tdbb, idx.idx_primary_relation, false)) )
// get partner relation for FK index
if (EVL_field(0, rpb->rpb_record, f_idx_foreign, &desc2))
{
DeferredWork* arg = DFW_post_work_arg(transaction, work, 0, partner->rel_id);
arg->dfw_type = dfw_arg_partner_rel_id;
}
else { // can't find partner relation - impossible ?
// add empty argument to let DFW know dropping
// index was bound with FK
DeferredWork* arg = DFW_post_work_arg(transaction, work, 0, 0);
arg->dfw_type = dfw_arg_partner_rel_id;
MOV_get_metadata_str(&desc, relation_name, sizeof(relation_name));
DSC desc3;
EVL_field(0, rpb->rpb_record, f_idx_name, &desc3);
SqlIdentifier idx_name;
MOV_get_metadata_str(&desc3, idx_name, sizeof(idx_name));
jrd_rel *partner;
index_desc idx;
if ((r2 = MET_lookup_relation(tdbb, relation_name)) &&
(BTR_lookup(tdbb, r2, id-1, &idx) == FB_SUCCESS) &&
(MET_lookup_partner(tdbb, r2, &idx, idx_name)) &&
(partner = MET_lookup_relation_id(tdbb, idx.idx_primary_relation, false)) )
{
DeferredWork* arg = DFW_post_work_arg(transaction, work, 0, partner->rel_id);
arg->dfw_type = dfw_arg_partner_rel_id;
}
else
{ // can't find partner relation - impossible ?
// add empty argument to let DFW know dropping
// index was bound with FK
DeferredWork* arg = DFW_post_work_arg(transaction, work, 0, 0);
arg->dfw_type = dfw_arg_partner_rel_id;
}
}
}
break;